JP4655138B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner that air-conditions a vehicle interior.

  2. Description of the Related Art Conventionally, in a vehicle air conditioner, a casing having a defroster opening, a face opening, and a foot opening, and a rotatably supported and any one of the defroster opening, the face opening, and the foot opening. Some have a rotary door that opens as the part rotates (see, for example, Patent Document 1). Hereinafter, the defroster opening, the face opening, and the foot opening are collectively referred to as three openings.

  A rotary door is provided with the 1st outer peripheral wall provided in the radial direction outer peripheral side of the rotating shaft, and the 2nd outer peripheral wall provided in the circumferential direction one side with respect to the 1st outer peripheral wall. Between the first and second outer peripheral walls of the rotary door, a door opening that blows conditioned air into any one of the three openings is provided.

  The first seal member is disposed on the radially outer peripheral side with respect to the first outer peripheral wall, and the second seal member is disposed on the radially outer peripheral side with respect to the second outer peripheral wall. Has been.

  When the rotary door configured as described above performs the face mode, the first outer peripheral wall closes the defroster opening and the second outer peripheral wall closes the foot opening. The seal member seals the defroster opening, and the second seal member seals the foot opening.

  In the bi-level mode, the first outer peripheral wall closes the defroster opening and the first seal member seals the defroster opening.

  In the foot mode, the first outer peripheral wall closes the face opening and the first seal member seals the face opening.

  In the defroster mode, the first outer peripheral wall closes the face opening and the foot opening, and the first seal member seals the face opening and the foot opening.

As described above, of the three openings, the openings closed by the first and second outer peripheral walls are sealed by the first and second seal members. For this reason, it can prevent that an conditioned air flows into the opening part closed by the 1st, 2nd outer peripheral wall among three opening parts.
JP-A-8-25945

  Since the first and second sealing members are used in the vehicle air conditioner described above, the conditioned air is prevented from flowing into the openings closed by the first and second outer peripheral walls among the three openings. However, many sealing members such as the first and second sealing members are required.

  In view of the above points, an object of the present invention is to reduce the amount of seal members used in a vehicle air conditioner.

In order to achieve the above object, according to the first aspect of the present invention, at least one of the defroster opening, the face opening, and the foot opening is formed in the first and second outer circumferences as the rotary door rotates. This communication is performed in a state where the door opening is closed by one of the outer peripheral walls of the walls and the door opening communicates with an opening other than at least one of the defroster opening, the face opening, and the foot opening. A vehicle air conditioner that air-conditions the vehicle interior with conditioned air blown into the vehicle interior from the other opening that has been made,
A seal member (260) is provided only on one of the first and second outer peripheral walls (251) side,
In the rotary door, the door opening communicates with the face opening, and one of the first and second outer peripheral walls (251) closes the defroster opening and the other outer wall other than the one outer peripheral wall. With the outer peripheral wall (252) closing the foot opening, the seal member (260) seals the defroster opening, and the foot opening is unsealed.

  As described above, when the seal member is disposed only on one outer peripheral side of the first and second outer peripheral walls, the seal member is disposed on each radially outer peripheral side of the first and second outer peripheral walls. Compared to the above, the number of sealing members can be reduced.

  Here, the face opening is an opening that blows conditioned air toward the upper half of the occupant in the vehicle interior, the foot opening is an opening that blows conditioned air toward the lower half of the occupant, and the defroster opening is An opening that blows air-conditioned air toward the inner surface of the window glass in the vehicle interior.

In the invention according to claim 2, with rotation of the rotary door, at least one of the defroster opening, the face opening, and the foot opening is changed to one of the first and second outer peripheral walls. When the door opening is in communication with the other opening other than at least one of the defroster opening, the face opening, and the foot opening, the door opening is closed by the outer peripheral wall. A vehicle air conditioner that air-conditions the vehicle interior with air-conditioned air blown into the vehicle interior,
In the rotary door, the door opening communicates with the face opening, and one of the first and second outer peripheral walls (251) closes the defroster opening and the other outer wall other than the one outer peripheral wall. A seal member (260a, 260b, 260c) is provided that reduces the amount of air leaking through the defroster opening from the amount of air leaking through the foot opening in a state where the outer peripheral wall (252) closes the foot opening. .

  Accordingly, the door opening communicates with the face opening, and one of the first and second outer peripheral walls closes the defroster opening, and the other outer peripheral wall other than the one outer peripheral wall is the foot. Compared to the case where the seal member seals the foot opening and the defroster opening with the opening closed, the number of seal members can be reduced.

In the invention which concerns on Claim 3, a rotary door has the 1st door side wall (250a) provided in the axial direction one side of the rotating shaft with respect to the 1st, 2nd outer peripheral wall,
The casing has a first case side wall (225a) that is provided on one side in the axial direction with respect to the first door side wall and faces the first door side wall via a gap,
One of the first door side wall and the first case side wall is provided with at least one groove (Ka), and the other side wall is provided with a protrusion (228a) protruding into the groove. ,
The groove and the protrusion constitute a labyrinth structure that restricts the flow of conditioned air flowing through the gap.

In the invention which concerns on Claim 4, a rotary door has the 2nd door side wall (250b) provided in the other side of the 1st door side wall with respect to the 1st, 2nd outer peripheral wall,
The casing has a second case side wall (225b) that is provided on the opposite side of the first door side wall with respect to the second door side wall and faces the second door side wall through a gap,
One of the second door side wall and the second case side wall is provided with at least one groove (Kb), and the other side wall is provided with a protrusion (228b) protruding into the groove. ,
The groove and the protrusion constitute a labyrinth structure that restricts the flow of conditioned air flowing through the gap.

  The invention according to claim 5 is characterized in that the seal member is formed so as to cover one outer peripheral wall from the radially outer peripheral side.

In the invention which concerns on Claim 6, the opening part (251a) is provided in one outer peripheral wall,
The seal member (260) is disposed so as to cover the opening of one outer peripheral wall,
With the door opening communicated with the face opening and one outer peripheral wall (251) closed the defroster opening, the seal member receives the air pressure of the conditioned air through the opening and swells radially outward to open the defroster opening. It is characterized in that the part is sealed.

In the invention according to claim 7, the seal member is supported on one outer peripheral wall and is formed to be elastically deformable.
The casing includes a casing peripheral wall portion (210) provided on a radially outer peripheral side with respect to the rotary door and having a defroster opening, a face opening, and a foot opening.
The casing peripheral wall is
It is arranged on one side in the circumferential direction with respect to the defroster opening, protrudes radially inward over the axial direction of the rotating shaft, and its tip is linearly formed over the axial direction of the rotating shaft. 1 protrusion (211a),
It is arranged on the other side in the circumferential direction with respect to the defroster opening, protrudes radially inward over the axial direction of the rotating shaft, and its tip is linearly formed over the axial direction of the rotating shaft. Two protrusions (212a),
With the door opening communicated with the face opening and one of the outer peripheral walls (251) closed the defroster opening, the first and second protrusions pushed the seal member and moved the seal member in the axial direction. Compressed by elastic deformation,
The defroster opening is hermetically sealed by bringing the compressed seal member into close contact between the first and second protrusions and one outer peripheral wall.

In the invention which concerns on Claim 8, the 1st holding | suppressing part (229a) which presses the axial direction one side edge part of a rotating shaft among the sealing members over the circumferential direction is provided in the inner peripheral wall of the casing surrounding wall part. And
The first pressing portion presses one end in the axial direction of the sealing member over the circumferential direction, thereby compressing one end in the axial direction of the sealing member by elastic deformation, 251) is sealed over the circumferential direction.

  In the invention which concerns on Claim 9, the cross-sectional shape of the 1st holding | suppressing part (229a) is formed so that it may approach one outer peripheral wall, so that it inclines with respect to one outer peripheral wall and goes to an axial direction one side. It is characterized by that.

In the invention which concerns on Claim 10, the 2nd holding | suppressing part (229b) which presses the axial direction other side edge part of a rotating shaft among the sealing members over the circumferential direction is provided in the inner peripheral wall of the casing surrounding wall part. And
The second pressing portion presses the other end portion in the axial direction of the seal member over the circumferential direction, thereby compressing the other end portion in the axial direction of the seal member by elastic deformation, 251) is sealed over the circumferential direction.

  In the invention which concerns on Claim 11, the cross-sectional shape of the 2nd holding | suppressing part (229b) inclines with respect to one outer peripheral wall, and it is formed so that it may approach one outer peripheral wall, so that it goes to an axial direction other side. It is characterized by that.

In the invention according to claim 12, the seal member includes a first seal member (260 a) disposed on the radially outer side and on the one circumferential side with respect to the one outer peripheral wall, and the one outer peripheral wall. A second seal member (260c) disposed on the radially outer circumferential side and on the other circumferential side,
The first and second seal members are formed so as to extend in the axial direction of the rotation shaft,
In a state where one outer peripheral wall closes the defroster opening, the first seal member closely contacts one side in the circumferential direction with respect to the defroster opening and one outer peripheral wall of the casing, and the second seal member Is characterized in that the defroster opening is hermetically sealed by bringing the other side in the circumferential direction and one outer peripheral wall into close contact with the defroster opening in the casing.

  Thereby, since one sealing member can move to the inner peripheral wall side of a casing surrounding wall part smoothly, the frictional force of the sealing member with respect to the inner peripheral wall side of a casing surrounding wall part can be reduced. Therefore, the driving force required when rotating the rotary door can be reduced.

In the invention according to claim 13, the casing includes a casing peripheral wall portion (210) provided on a radially outer peripheral side with respect to the rotary door and having a defroster opening, a face opening, and a foot opening.
With one outer peripheral wall closing the face opening and the door opening communicating with the foot opening, the conditioned air leaks from the gap between the casing peripheral wall and one outer peripheral wall to the face opening. It is characterized by becoming.

In the invention which concerns on Claim 14, a 1st, 2nd sealing member is respectively a state with one outer peripheral wall and a casing peripheral wall part in the state compressed by elastic deformation between one outer peripheral wall and a casing peripheral wall part. It is what makes the space close,
At least one of the first and second seal members has a length (r1) between the outer circumferential side in the radial direction and the rotation shaft that decreases as it advances to either one of the circumferential directions. It is characterized in that one of the sealing members is guided to move toward the inner peripheral wall side of the casing peripheral wall portion as the one outer peripheral wall rotates.

  In the invention which concerns on Claim 15, the surface (251c) by which one seal member is arrange | positioned among one outer peripheral walls is the length (r2) between rotating shafts in any one side in the circumferential direction. By being formed so as to be shorter, the length (r1) between the radially outer peripheral side of one of the seal members and the rotary shaft is shorter as it proceeds to either one of the circumferential directions. It is characterized by becoming.

  In the invention which concerns on Claim 16, the opening formation part (211d) which forms any one opening part among a defroster opening part, a face opening part, and a foot opening part among casing surrounding wall parts approaches one opening part. As the length (r3) between the rotary shaft and the rotary shaft becomes longer, one of the first and second seal members is opened as the rotary door rotates. It guides to move from the section side to the inner peripheral wall (210c) side of the casing peripheral wall section.

In the invention according to claim 17, the casing includes a casing peripheral wall portion (251) provided on the radially outer peripheral side with respect to the rotary door and having a defroster opening, a face opening, and a foot opening,
The casing peripheral wall portion is provided on one side in the circumferential direction with respect to the defroster opening, and protrudes toward the radially inner periphery, and the other side in the circumferential direction with respect to the defroster opening. And a second casing protrusion (350) protruding toward the radially inner peripheral side,
The first seal member ( 260b ) is disposed on one side in the circumferential direction with respect to one outer peripheral wall,
A second seal member (260c) is disposed on the other circumferential side with respect to one outer peripheral wall;
With one outer peripheral wall (251) closing the defroster opening, the first seal member ( 260b ) brings the one outer peripheral wall into close contact with the first casing protrusion, and the second seal member (260c). ) Closes the defroster opening by bringing one outer peripheral wall and the second casing protrusion into close contact with each other.

  In the invention which concerns on Claim 18, in the state which the door opening part connected to the foot opening part and one outer peripheral wall closed the face opening part, a clearance gap between one outer peripheral wall and a casing outer peripheral wall It is characterized by leaking to the face opening side.

In the invention according to claim 19, the face opening (21c), the foot opening (21d), the defroster opening (21b), and the first ventilation path (32a) for flowing the conditioned air toward the face opening. And a casing (21) having a second ventilation path (32b) for flowing the conditioned air blown from the first ventilation path toward the foot opening and the defroster opening by bypassing the face opening,
A face door (400) that is formed in a plate shape and that opens one of the face opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (400a);
A defroster door (410) that is formed in a plate shape and that opens one of the foot opening and the defroster opening as the rotation shaft (410a) rotates,
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of a defroster opening, a face opening, and a foot opening,
With the defroster door closing the defroster opening and opening the foot opening, and the face door opening the face opening and closing the air inlet (33) of the second ventilation path, the defroster opening is sealed. And a seal member (410c) provided to make the foot opening in an unsealed state.

  Accordingly, the defroster door closes the defroster opening and opens the foot opening, and the face door opens the face opening and closes the air inlet (33) of the second ventilation path. The sealing member can be reduced as compared with the case where the sealing member that seals the portion and the foot opening is provided.

In the invention according to claim 20, the face opening (21c), the foot opening (21d), the defroster opening (21b), and the first ventilation path (32a) for flowing the conditioned air toward the foot opening. And a casing (21) having a second ventilation path (32b) for flowing the conditioned air blown from the first ventilation path toward the face opening and the defroster opening while bypassing the foot opening.
A foot door (440) that is formed in a plate shape and that opens one of the foot opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (440a);
A defroster door (410) that is formed in a plate shape and that opens one of the face opening and the defroster opening as the rotation shaft (410a) rotates;
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of a defroster opening, a face opening, and a foot opening,
The defroster door closes the defroster opening and opens the face opening side, and the foot door closes the foot opening and opens the air inlet of the second ventilation path, and the defroster opening is sealed, and A seal member (410c) provided so as to put the foot opening in an unsealed state is provided.

  Therefore, as in the invention according to claim 19, the number of sealing members can be reduced.

In the invention according to Claim 21, the face opening (21c), the foot opening (21d), the defroster opening (21b), and the first ventilation path (32a) for flowing the conditioned air toward the defroster opening. And a casing (21) having a second ventilation path (32b) that flows the conditioned air blown from the first ventilation path toward the face opening and the foot opening by bypassing the defroster opening,
A defroster door (410) that is formed in a plate-like shape and that opens one of the defroster opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (410a);
A face door (400) that is formed in a plate shape and that opens one of the face opening and the foot opening in accordance with the rotation of the rotation shaft (400a);
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of a defroster opening, a face opening, and a foot opening,
The defroster door closes the defroster opening and opens the air inlet of the second ventilation path, the face door opens the face opening side and closes the foot opening, and the defroster opening is sealed; and A seal member (410c) provided so as to put the foot opening in an unsealed state is provided.

  Therefore, as in the invention according to claim 19, the number of sealing members can be reduced.

In the invention which concerns on Claim 22, it has a face opening part (21c), a foot opening part (21d), and a defroster opening part (21b), and air-conditioning wind toward a face opening part, a foot opening part, and a defroster opening part A casing (21) for flowing
A face door (400) that is formed in a plate shape and opens and closes the face opening in accordance with the rotation of the rotation shaft (400a);
A foot door (440) that is formed in a plate shape and opens and closes the foot opening in accordance with the rotation of the rotation shaft (440a);
A defroster door (410) that is formed in a plate shape and opens and closes the defroster opening in accordance with the rotation of the rotation shaft (410a);
A seal member (410c) that seals the defroster opening with the defroster door closed.
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of a defroster opening, a face opening, and a foot opening,
The face door opens the face opening, the defroster door closes the defroster opening, the foot door closes the foot opening, the defroster opening is sealed, and the foot opening is unsealed It is provided with the sealing member (410c) provided so that it may become.

  Therefore, as in the invention according to claim 19, the number of sealing members can be reduced.

  In addition, the code | symbol in the bracket | parenthesis of each means described in a claim and this column shows the correspondence with the specific means as described in embodiment mentioned later.

(First embodiment)
FIG. 1 shows a first embodiment of a vehicle air conditioner according to the present invention. FIG. 1 is a diagram showing a schematic configuration of a vehicle air conditioner. In FIG. 1, the up, down, left, and right arrows indicate the directions when the vehicle air conditioner is mounted on the vehicle.

  The vehicle air conditioner includes a blower unit 10 and an air conditioning unit 20. The blower unit 10 includes a centrifugal blower 11 and a scroll casing 12. The centrifugal blower 11 blows out the air sucked from the axial direction of the rotating shaft 11a to the outer peripheral side in the radially outward direction. The scroll casing 12 has a blower outlet 11 b that blows out an air flow blown from the centrifugal blower 11.

  The air conditioning unit 20 is disposed on the vehicle front side with respect to the blower unit 10. The air conditioning unit 20 includes a casing 21, a cooling heat exchanger 22, a heating heat exchanger 23, an air mix door 24, and a blow-out mode door 25.

  An air inlet 21 a is provided on the lower side of the casing 21. Air that is blown out as shown by an arrow A from the air outlet 11b of the scroll casing 12 is introduced into the air inlet 21a.

  The cooling heat exchanger 22 is disposed above the air inlet 21 a in the casing 21. The cooling heat exchanger 22 constitutes a well-known refrigeration cycle apparatus that circulates refrigerant together with a compressor, a condenser, and an expansion valve, and cools air introduced into the air inlet 21a by evaporating the refrigerant. .

  The heating heat exchanger 23 is disposed above the cooling heat exchanger 22 in the casing 21 and heats the cold air blown from the cooling heat exchanger 22 with engine cooling water (hot water).

  A bypass passage 26 is provided on the rear side of the casing 21 with respect to the heating heat exchanger 23 in the casing 21. The bypass passage 26 is a passage through which the cold air from the cooling heat exchanger 22 flows while bypassing the heating heat exchanger 23.

  The air mix door 24 is disposed on the air upstream side of the bypass passage 26. The air mix door 24 is rotatably supported by the casing 21.

  The air mix door 24 adjusts the temperature of the air blown into the passenger compartment by adjusting the ratio of the amount of air flowing through the bypass passage 26 and the amount of air flowing through the heating heat exchanger 23.

  An air mixing chamber 27 is provided above the bypass passage 26 in the casing 21. The air mixing chamber 27 mixes the cold air that has passed through the bypass passage 26 (see arrow E) and the hot air that has passed through the heating heat exchanger 23 (see arrow D).

  The blowing mode door 25 is disposed on the upper side of the air mixing chamber 27 in the casing 21. The blowing mode door 25 is rotatably supported with respect to the casing 21 by a rotating shaft 25a. The blowing mode door 25 is driven by an electric motor (not shown).

  A casing peripheral wall portion 210 is provided on the radially outer side of the casing 21 with respect to the blowing mode door 25. The casing peripheral wall portion 210 is formed in a circular arc shape with the rotating shaft 25a as the center.

  The casing peripheral wall 210 is provided with a defroster opening 21b, a face opening 21c, and a foot opening 21d. The openings 21b, 21c, 21d are arranged in the circumferential direction.

  In the present embodiment, the face opening 21c is disposed on the other side in the circumferential direction with respect to the defroster opening 21b. The foot opening 21d is disposed on one side in the circumferential direction with respect to the defroster opening 21b.

  The face opening 21c is an opening that blows conditioned air toward the upper half of the occupant in the vehicle interior, the foot opening 21d is an opening that blows conditioned air toward the lower half of the occupant, and the defroster opening 21b is An opening that blows air-conditioned air toward the inner surface of the window glass in the vehicle interior.

  The blowout mode door 25 causes the mixed air from the air mixing chamber 27 to flow to any one of the openings 21b, 21c, and 21d as it rotates. As the blowing mode door 25 of the present embodiment, a rotary door formed in a substantially semi-cylindrical shape is used.

  Next, the specific structure of the blowing mode door 25 of this embodiment is demonstrated.

  2A is a perspective view showing the blowing mode door 25, and FIG. 2B is a cross-sectional view of the blowing mode door 25 as viewed from the axial direction of the rotary shaft 25a.

  The blowout mode door 25 includes semicircular side walls 250a and 250b, outer peripheral walls 251 and 252 and a door opening 250c as shown in FIG.

  The semicircular side walls 250a and 250b are arranged at an interval. An air inlet 252c (see FIG. 2B) is provided between the semicircular side walls 250a and 250b. The air introduction port 252 c introduces the mixed air from the air mixing chamber 27.

  Each of the semicircular side walls 250a and 250b is provided with the above-described rotation shaft 25a, and the rotation shaft 25a is formed to protrude outward from the semicircular side walls 250a and 250b. In FIG. 2A, the rotating shaft 25a disposed on the semicircular side wall 250b is omitted.

  The outer peripheral wall 251 is formed so as to extend in the circumferential direction around the rotation shaft 25a. That is, the outer peripheral wall 251 constitutes a first outer peripheral portion that is formed in a circular arc shape with the rotation shaft 25a as the center. The outer peripheral wall 251 is provided with a plurality of openings 251a.

  Each opening 251a applies wind pressure to the seal member 260 based on the air flow introduced from the air inlet 252c, as will be described later.

  The seal member 260 is arranged so as to cover the outer peripheral wall 251 in the radial direction outer peripheral side with respect to the outer peripheral wall 251 and in the circumferential direction. The seal member 260 is a film-like member having elasticity such as urethane, and seals the defroster opening 21b and the like in a state of receiving wind pressure as will be described later.

  A cutout portion 270 is provided on one side in the circumferential direction with respect to the outer peripheral wall 251 in the semicircular side wall 250a. A cutout portion 271 is provided on one side in the circumferential direction with respect to the outer peripheral wall 251 in the semicircular side wall 250b.

  A plate portion 273a is provided on the side of the notches 270 and 271 with respect to the outer peripheral wall 251. The plate portion 273a is formed between the cutout portions 270 and 271 so as to extend in the axial direction of the rotation shaft 25a.

  Each hook 274a is provided on the plate portion 273a. The hooks 274a are arranged in the axial direction of the rotation shaft 25a. Each hook 274a engages with each hole 261a of the seal member 260 (see FIG. 2B). Each hole 261 a is provided on one side in the circumferential direction of the seal member 260.

  A plate portion 273b is provided on the other side in the circumferential direction with respect to the outer peripheral wall 251, and the plate portion 273b is formed so as to extend in the axial direction between the semicircular side walls 250a and 250b. Each hook 274b is provided on the plate portion 273b.

  The hooks 274b are arranged in the axial direction. FIG. 2B shows only one hook 274b. Each hook 274b engages with each hole 261b provided on the other circumferential side of the seal member 260.

  The outer peripheral wall 252 is formed so as to extend in the circumferential direction about the rotation shaft 25a. That is, the outer peripheral wall 252 constitutes a second outer peripheral portion formed in a circular arc shape with the rotation shaft 25a as the center. The outer peripheral wall 252 is disposed on one side in the circumferential direction with respect to the outer peripheral wall 251. A seal member is not provided on the radially outer peripheral side of the outer peripheral wall 252.

  The door opening 250c is disposed between the outer peripheral wall 251 and the outer peripheral wall 252.

  Next, a specific operation of the blowing mode door 25 of the present embodiment will be described.

  3 to 7 show the operating state of the blowing mode door 25, respectively.

  First, in the face mode shown in FIG. 3, the outer peripheral wall 251 closes the defroster opening 21b and the outer peripheral wall 252 closes the foot opening 21d.

  At this time, an air flow is introduced into the blowing mode door 25 through the air inlet 252c. Therefore, wind pressure based on the air flow from the air introduction port 252c is given to the seal member 260 through each opening 251a.

  Therefore, the seal member 260 swells toward the radially outer peripheral side. Thereby, the circumference | surroundings of the defroster opening part 21b and the outer peripheral wall 251 are closely_contact | adhered among the casing surrounding wall parts 210. FIG. For this reason, the defroster opening 21b is in a sealed state.

  In the face mode, the door opening 250c communicates with the face opening 21c. For this reason, the air introduced from the air inlet 252c flows into the face opening 21c through the door opening 250c.

  In addition, the air introduced from the air inlet 252c leaks into the foot opening 21d through the gap between the casing outer peripheral portion 210 and the outer peripheral wall 252 as indicated by an arrow ma.

  As described above, in the face mode, the defroster opening 21b is sealed and the foot opening 21d is not sealed.

  Next, when the blowing mode door 25 rotates clockwise, the bi-level mode shown in FIG. 4 is set. In this bi-level mode, the door opening 250c communicates with the face opening 21c and the foot opening 21d while the outer peripheral wall 251 closes the defroster opening 21b.

  At this time, with the seal member 260 sealing the defroster opening 21b in the same manner as the face mode described above, air introduced from the air inlet 252c passes through the door opening 250c to the face opening 21c and the foot opening 21d. Will flow in.

  Next, when the blowing mode door 25 rotates clockwise, the foot mode shown in FIG. 5 is set. In this foot mode, the defroster opening 21b is slightly opened, the outer peripheral wall 251 closes the face opening 21c, and the door opening 250c communicates with the foot opening 21d.

  In this case, the air introduced from the air inlet 252c flows to the foot opening 21d through the door opening 250c. In addition, the air introduced from the air inlet 252c flows toward the defroster opening 21b as indicated by the arrow mb.

  Further, wind pressure based on the air flow from the air inlet 252c is given to the seal member 260 through each opening 251a. Therefore, the seal member 260 swells toward the radially outer peripheral side.

  As a result, the periphery of the face opening 21 c and the outer peripheral wall 251 in the casing peripheral wall 210 are in close contact with each other. For this reason, the face opening 21c is in a sealed state.

  Next, when the blowing mode door 25 rotates in the clockwise direction, the foot-diff mode is set as shown in FIG. In the foot-def mode, substantially the same as in the foot mode, the air introduced from the air inlet 252c with the seal member 260 sealing the face opening 21c passes through the door opening 250c and the foot opening 21d and the defroster opening. It flows to each of 21b.

  Next, when the blowing mode door 25 rotates clockwise, the defroster mode is set as shown in FIG. In the defroster mode, the outer peripheral wall 251 closes the face opening 21c and the foot opening 21d, and opens the defroster opening 21b. In this case, the air introduced from the air inlet 252c flows toward the defroster opening 21b.

  The sealing member 260 swells radially outward based on the wind pressure received through each opening 251a. Therefore, the seal member 260 closely contacts the periphery of the opening 21c and the outer peripheral wall 251 of the casing peripheral wall 210, and also closely contacts the periphery of the opening 21d and the outer peripheral wall 251 of the casing peripheral wall 210. Let For this reason, the face opening 21c and the foot opening 21d are sealed.

  According to the present embodiment described above, since the seal member 260 is provided only on the radially outer peripheral side of the outer peripheral wall 251 among the outer peripheral walls 251 and 252, the seal member 260 has the radial outer periphery of each of the outer peripheral walls 251 and 252. Compared with the case where it is provided on the side, the amount of use of the seal member can be reduced.

  Further, the seal member 260 slides with respect to the casing outer peripheral portion 210 as the blowing mode door 25 rotates. For this reason, when driving the blowing mode door 25, a frictional force is generated between the casing outer peripheral portion 210 and the seal member 260.

  On the other hand, in this embodiment, since the usage amount of the seal member 260 is reduced as described above, the sliding area in which the seal member 260 slides with respect to the casing outer peripheral portion 210 is reduced.

  For this reason, since a frictional force can be made small between the casing outer peripheral part 210 and the sealing member 260, the driving force required in order to drive the blowing mode door 25 can be made small.

  Furthermore, when the seal member 260 slides with respect to the casing outer peripheral portion 210, although a sliding noise is generated, as described above, the usage amount of the seal member 260 is reduced to reduce the casing outer peripheral portion 210 and the seal member 260. Since the sliding area between the two is reduced, the sliding noise can be reduced.

  In the present embodiment, in the face mode, the air introduced from the air inlet 252c leaks into the foot opening 21d as indicated by the arrow ma in FIG. For this reason, for example, although a little cold wind is blown off at the feet of the occupant in the summer and the feet tend to cool down, there is no problem in driving the occupant.

  In the first embodiment described above, the face opening 21c is arranged on the other side in the circumferential direction with respect to the defroster opening 21b, and the foot opening 21d is arranged on the one side in the circumferential direction with respect to the defroster opening 21b. However, instead of this, the face opening 21c is disposed on one side in the circumferential direction with respect to the defroster opening 21b, and the foot opening 21d is disposed on the other side in the circumferential direction with respect to the defroster opening 21b. You may arrange.

  In the first embodiment described above, the example in which the seal member 260 is arranged to prevent the conditioned air from leaking from the openings 21b, 21c, 21 has been shown. In addition to this, the semicircular side wall of the blowout mode door 25 is provided. A labyrinth seal structure may be configured in order to further suppress the leakage of conditioned air from between 250a (225b) and the casing 21.

  The configuration in this case is shown in FIGS.

  FIG. 8A is a perspective view showing the blowing mode door 25, and FIG. 8B is a cross-sectional view of the blowing mode door 25 viewed from the axial direction of the rotary shaft 25a. 9 is a cross-sectional view taken along the line A2-A2 in FIG. 8B, and FIG. 10 is a cross-sectional view taken along the line B2-B2 in FIG. 8B.

  As shown in FIGS. 9 and 10, the casing 21 is provided with case side walls 225 a and 225 b.

  The case side wall 225 a is provided on one side in the axial direction with respect to the semicircular side wall 250 a of the blowout mode door 25. The case side wall 225a faces the semicircular side wall 250a via a gap.

  The case side wall 225b is provided on the opposite side of the semicircular side wall 250a with respect to the semicircular side wall 250b. The case side wall 225b is opposed to the semicircular side wall 250b via a gap.

  The semicircular side wall 250a is provided with protrusions 226a and 227a that protrude to one side in the axial direction. The protrusions 226a and 227a are disposed on the radially outer peripheral side of the semicircular side wall 250a. The protrusions 226a and 227a are provided in an arc shape around the rotation shaft 25a over the circumferential direction of the semicircular side wall 250a. The protrusions 226a and 227a constitute a groove portion Ka between them. That is, the groove part Ka is provided in the circular arc shape centering on the rotating shaft 25a over the circumferential direction of the semicircular side wall 250a.

  The case side wall 225a is provided with a protrusion 228a that protrudes to the other side in the axial direction. The protrusion 228a is provided in an arc shape centering on the rotation shaft 25a over the circumferential direction of the case side wall 225a. The tip end side of the protruding portion 228a is located in the groove portion Ka. The protruding portion 228a and the groove portion Ka constitute a labyrinth seal structure. As a result, the flow of the conditioned air (see arrow ma in FIGS. 9 and 10) is narrowed between the case side wall 225a and the semicircular side wall 250a.

  The semicircular side wall 250b is provided with protrusions 226b and 227b that protrude to the other side in the axial direction. The protrusions 226b and 227b are disposed on the radially outer peripheral side of the semicircular side wall 250b. The protrusions 226b and 227b are provided in an arc shape centering on the rotation shaft 25a over the circumferential direction of the semicircular side wall 250b. The protrusions 226b and 227b form a groove Kb between each other. That is, the groove part Kb is provided in the circular arc shape centering on the rotating shaft 25a over the circumferential direction of the semicircular side wall 250b.

  The case side wall 225b is provided with a protrusion 228b that protrudes to the other side in the axial direction. The protrusion 228b is provided in an arc shape centering on the rotation shaft 25a over the circumferential direction of the case side wall 225a. The tip end side of the protrusion 228b is located in the groove Kb. The protrusion 228b and the groove Kb constitute a labyrinth seal structure. As a result, the flow of conditioned air (see arrow ma in FIGS. 9 and 10) is narrowed in the gap between the case side wall 225b and the semicircular side wall 250b.

  In the configuration described above, as shown in FIG. 8, the door opening 250c of the blowing mode door 25 communicates with the face opening 21c, the outer peripheral wall 251 closes the defroster opening 21b, and the outer peripheral wall 252 is a foot. With the opening 21d closed, it is possible to prevent the conditioned air from leaking into the foot opening 21d through the gap between the case side wall 225a and the semicircular side wall 250a. In addition, it is possible to suppress the conditioned air from leaking to the foot opening 21d through the gap between the case side wall 225b and the semicircular side wall 250b.

  In the semicircular side wall 250a shown in FIG. 8, the rotating shaft 25a is provided so as to protrude from the base portion 25b. The base portion 25b is provided so as to protrude from the semicircular side wall 250a to one side in the axial direction. The semicircular side wall 250a is provided with a connecting protrusion 25c. The connecting protrusion 25c connects the base 25b and one side in the circumferential direction of the protrusion 226a, and the base 25b and the protrusion 226a. Are formed so as to be connected to the other side in the circumferential direction.

  Although illustration is omitted, similarly, the semicircular side wall 250b is also provided with a base portion and a connecting projection portion.

  In addition, the groove part Kb is provided in the semicircular side wall 250a (250b) side of the blowing mode door 25, and not only when providing the protrusion part 228a (228b) in the case side wall 225b, the semicircular side wall 250a ( The protrusion 228a (228b) may be provided on the 250b) side, and the groove Kb may be provided on the case side wall 225b. Further, a plurality of groove portions Ka and groove portions Kb may be provided in concentric circles with the rotation axis (25a) as the center.

(Second Embodiment)
In the first embodiment described above, an example in which a film-like member is used as the seal member 260 has been described. However, in the second embodiment, a long plate-like seal member is used as the seal member 260 instead. An example will be described.

  FIG. 11 is a cross-sectional view of the blowing mode door 25 of the present embodiment viewed from the axial direction, FIG. 12 is a view of the blowing mode door 25 from the upper side in FIG. 11, and FIG. 13 is an enlarged cross-sectional view of the seal member. Show. In FIG. 11, the same reference numerals as those in FIG.

  The outer peripheral wall 251 of this embodiment is not provided with a plurality of openings 251a. Long plate-like seal members 260a, 260b, and 260c are disposed on the outer peripheral side of the outer peripheral wall 251 in the radial direction. As shown in FIG. 12, the seal members 260a, 260b, and 260c are formed so as to extend in the axial direction of the rotary shaft 25a.

  The seal member 260a constitutes a first seal member arranged on one side in the circumferential direction with respect to the outer peripheral wall 251. The seal member 260 c constitutes a second seal member disposed on the other circumferential side with respect to the outer peripheral wall 251.

  The seal member 260b is disposed between the seal members 260a and 260c in the circumferential direction.

  As shown in FIG. 13, the seal member 260 a includes an elastic member 300 and a skin member 301. The elastic member 300 is an elastic member such as urethane foam, and is disposed on the outer peripheral side in the radial direction of the outer peripheral wall 251. The elastic member 300 is bonded to the outer peripheral wall 251.

  The skin member 301 is disposed on the outer peripheral side in the radial direction with respect to the elastic member 300 and reduces the frictional force with respect to the outer peripheral portion 210 of the casing. The skin member 301 is bonded to the elastic member 300.

  The seal members 260b and 260c are composed of an elastic member 300 and a skin member 301, similarly to the seal member 260a.

  Next, the operation of this embodiment will be described. 11 and 14 to 17 show the operating state of the blowout mode door 25.

  First, in the face mode shown in FIG. 11, the door opening 250c communicates with the face opening 21c with the outer peripheral wall 251 closing the defroster opening 21b and the outer peripheral wall 252 closing the foot opening 21d. .

  At this time, the seal member 260 a closely contacts the circumferential side of the defroster opening 21 b and the outer peripheral wall 251 of the casing peripheral wall 210, and the seal member 260 c of the defroster opening 21 b of the casing peripheral wall 210. The other side in the circumferential direction and the outer peripheral wall 251 are in close contact. For this reason, the defroster opening 21b is in a sealed state.

  Then, air introduced from the air inlet 252c leaks into the foot opening 21d through the gap between the casing outer peripheral portion 210 and the outer peripheral wall 252 as indicated by an arrow ma. That is, the foot opening 21d is not sealed.

  Next, when the blowing mode door 25 rotates clockwise, the bi-level mode shown in FIG. 14 is set. In this bi-level mode, the sealing member 260b closely contacts one side in the circumferential direction of the defroster opening 21b and the outer peripheral wall 251 in the casing peripheral wall 210, and the sealing member 260c is in the defroster opening in the casing peripheral wall 210. The other side in the circumferential direction of 21b and the outer peripheral wall 251 are in close contact. For this reason, the defroster opening 21b is in a sealed state.

  Next, when the blowing mode door 25 rotates clockwise, the foot mode shown in FIG. 15 is set. In the foot mode, the defroster opening 21b is slightly opened, the outer peripheral wall 251 closes the face opening 21c, and the door opening 250c communicates with the foot opening 21d.

  In this case, the air introduced from the air inlet 252c leaks from the defroster opening 21b side to the face opening 21c side through the space between the outer peripheral wall 251 and the casing peripheral wall 210 as indicated by the arrow mc.

  Next, when the blow-out mode door 25 rotates in the clockwise direction, the foot-diff mode is set as shown in FIG.

  In the foot-diff mode, substantially the same as in the foot mode, the air introduced from the air inlet 252c passes between the outer peripheral wall 251 and the casing peripheral wall 210 as indicated by the arrow md, and from the defroster opening 21b side to the face opening 21c. Leak into

  In addition, air introduced from the air inlet 252c leaks from the foot opening 21d side to the face opening 21c side through the space between the outer peripheral wall 251 and the casing peripheral wall 210 as indicated by an arrow me.

  Next, when the blowout mode door 25 rotates clockwise, the defroster mode is set as shown in FIG. In this defroster mode, the seal member 260a is located on the one circumferential side of the casing peripheral wall 210 with respect to the foot opening 21d and the outer peripheral wall 251 with the outer peripheral wall 251 closing the face opening 21c and the foot opening 21d. Adhere closely to each other.

  In addition, the seal member 260 c closely contacts the other circumferential side of the casing peripheral wall 210 with respect to the face opening 21 c and the outer peripheral wall 251. For this reason, the face opening 21c and the foot opening 21d are sealed.

  According to the present embodiment described above, since the long plate-like seal members 260a, 260b, and 260c are used as the seal member, the amount of the seal member 260 used can be further reduced.

  In the second embodiment described above, the example in which the three seal members 260a, 260b, and 260c are used as the seal member has been described. However, the present invention is not limited thereto, and the seal member 260b may not be used. In this case, in the bi-level mode, air introduced from the air inlet 252c leaks from the face opening 21c side to the defroster opening 21b side.

(Third embodiment)
In the third embodiment, an example in which the long plate-like seal member used in the second embodiment described above is guided to move to the inner peripheral side of the casing outer peripheral wall will be described.

  Hereinafter, as a representative example of the seal members 260a, 260b, and 260c, the seal member 260b will be described with reference to FIG. FIG. 18 is a cross-sectional view of the seal member 260b viewed from the axial direction of the rotary shaft 25a.

  The seal member 260b of the present embodiment is formed in a substantially trapezoidal shape when viewed from the axial direction of the rotary shaft 25a.

  Specifically, one side 280 in the circumferential direction of the seal member 260b is formed so that the length r1 between the outer circumferential side in the radial direction and the rotating shaft 25a becomes shorter as it approaches one side in the circumferential direction. Has been.

  The other side 281 in the circumferential direction of the seal member 260b is formed such that the length r1 between the outer circumferential side in the radial direction and the rotating shaft 25a becomes shorter as it approaches the other side in the circumferential direction.

  In the present embodiment configured as described above, when the blowing mode door 25 rotates clockwise from the state where the sealing member 260b is located on the inner peripheral side of the defroster opening 21b as shown in FIG. 19, the sealing member It guides that 260b itself moves to the inner peripheral surface 210a side of the casing outer peripheral wall 210. Therefore, the seal member 260b can smoothly move toward the inner peripheral surface 210c of the casing outer peripheral wall 210.

  Further, as shown in FIG. 19, when the blowing mode door 25 rotates counterclockwise from the state in which the seal member 260 a is located on the inner peripheral side of the face opening 21 c, the seal member 260 a itself is attached to the casing outer peripheral wall 210. The movement to the inner peripheral surface 210c side is guided. Accordingly, the seal member 260a can smoothly move toward the inner peripheral surface 210c of the casing outer peripheral wall 210.

(Fourth embodiment)
In the fourth embodiment, an inclined surface is provided on the outer peripheral wall of the blowout mode door, so that the seal member has a substantially trapezoidal shape similar to that of the third embodiment.

  Hereinafter, as a representative example of the seal members 260a, 260b, and 260c, the seal member 260b will be described with reference to FIG. FIG. 20 is a cross-sectional view of the seal member 260b viewed from the axial direction of the rotation shaft 25a.

  One side in the circumferential direction of the surface 251c on which the seal member 260b is disposed in the outer peripheral wall 251 constitutes an inclined surface 252a. The inclined surface 252a is formed such that the length r2 between the inclined surface 252a and the rotating shaft 25a becomes shorter as it goes to one side in the circumferential direction.

  On the surface 251c of the outer peripheral wall 251, on which the seal member 260b is disposed, the other circumferential side 252b is formed such that the length r2 between the outer circumferential wall 251 and the rotating shaft 25a decreases toward the other circumferential side. ing.

  Since the surface 251c of the outer peripheral wall 251 is molded in this way, the seal member 260b is bonded to the surface 251c of the outer peripheral wall 251 even when the radial length of the seal member 260b is constant over the circumferential direction. In the state, as shown in FIG. 20, the seal member 260b can be formed into a substantially trapezoidal shape.

(Fifth embodiment)
In the third and fourth embodiments described above, the example in which the seal member itself is guided to move to the inner peripheral side of the inner peripheral surface 210a of the casing outer peripheral wall 210 by the shape of the seal member itself has been described. In the fifth embodiment, an example in which the seal member is guided to move to the inner peripheral side of the inner peripheral surface 210a of the casing outer peripheral wall 210 according to the shape of the casing peripheral wall portion will be described.

  FIG. 21 is a partial cross-sectional view of the blowing mode door 25 and the casing outer peripheral wall 210.

  The opening forming portion 211d that forms the defroster opening 21b in the casing outer peripheral wall 210 is formed in an inclined shape so that the length r3 between the rotation shaft 25a and the rotation shaft 25a increases as the defroster opening 21b is approached.

  For this reason, it will guide that the seal member 260b moves from the state located in the defroster opening part 21b side to the inner peripheral surface side of the inner peripheral surface 210c. Therefore, the seal member 260b can smoothly move to the inner peripheral surface 210a side of the casing outer peripheral wall 210.

  In the fifth embodiment described above, the example in which the opening forming portion 211d that forms the defroster opening 21b in the casing outer peripheral wall 210 is formed in an inclined shape has been described. The opening forming portion that forms the portion 21c may be formed in an inclined shape, or the opening forming portion that forms the foot opening 21d in the casing outer peripheral wall 210 may be formed in an inclined shape.

(Sixth embodiment)
In the second embodiment described above, the example in which the seal member is arranged on the outer peripheral surface side of the outer peripheral wall of the blowout mode door has been described. Instead, in the sixth embodiment, the circular shape of the outer peripheral wall of the blowout mode door is described. An example in which seal members are arranged in the circumferential direction will be described.

  FIG. 22A shows an exploded view of the blowing mode door 25 of the present embodiment, and FIG. 22B shows a sectional view of the blowing mode door 25 of the present embodiment viewed from the axial direction. In FIGS. 22A and 22B, the same reference numerals as those in FIGS. 12 and 11 denote the same components, and the description thereof is omitted.

  The protrusion part 290 is provided in the circumferential direction one side with respect to the outer peripheral wall 252 of the blowing mode door 25 of this embodiment, the protrusion part 290 protrudes to a radial direction outer peripheral side, and is the axis line of the rotating shaft 25a. It extends in the direction. The seal member 260 a is disposed on the other circumferential side of the protrusion 290.

  A wall 291 formed toward the other side in the circumferential direction is provided on the door opening 250c side of the outer peripheral wall 251. The wall 291 is formed so as to extend in the axial direction of the rotation shaft 25a. The seal member 269b is disposed on the other side in the circumferential direction with respect to the wall 291.

  A protrusion 292 is provided on the other circumferential side with respect to the outer peripheral wall 251. The protruding portion 292 protrudes radially inward and extends in the axial direction of the rotary shaft 25a. The seal member 269b is disposed on the other circumferential side with respect to the protruding portion 292.

  FIG. 23 is a cross-sectional view of the blowing mode door 25 and the casing outer peripheral wall 210 as viewed from the axial direction of the rotary shaft 25a.

  A casing protrusion 350 is provided on the other circumferential side of the casing outer peripheral wall 210 with respect to the defroster opening 21b. The casing protrusion 350 protrudes radially inward of the rotary shaft 25a and extends in the axial direction of the rotary shaft 25a.

  A casing protrusion 351 is provided on one side in the circumferential direction of the casing outer peripheral wall 210 with respect to the defroster opening 21b. The casing protrusion 351 protrudes radially inward of the rotary shaft 25a and extends in the axial direction of the rotary shaft 25a.

  A casing protrusion 352 is provided on one side in the circumferential direction of the casing outer peripheral wall 210 with respect to the foot opening 21d. The casing protrusion 352 protrudes radially inward of the rotary shaft 25a and extends in the axial direction of the rotary shaft 25a.

  Next, the operation of this embodiment will be described.

  23 to 27 show the operating state of the blowout mode door 25, respectively.

  First, in the face mode shown in FIG. 23, the door opening 250c communicates with the face opening 21c with the outer peripheral wall 251 closing the defroster opening 21b and the outer peripheral wall 252 closing the foot opening 21d. .

  At this time, the seal member 260 c closely contacts the casing protrusion 350 and the protrusion 292 of the outer peripheral wall 251, and the seal member 260 b closely contacts the casing protrusion 351 and the outer wall 251 of the wall 291. For this reason, the defroster opening 21b is in a sealed state.

  Here, a gap is formed between the casing outer peripheral portion 210 and the outer peripheral wall 252, although the seal member 260 a causes the casing protrusion 352 and the protruding portion 290 of the outer peripheral wall 252 to closely contact each other. For this reason, the air introduced from the air introduction port 252c leaks to the foot opening 21d side as indicated by the arrow ma through the gap between the casing outer peripheral portion 210 and the outer peripheral wall 252.

  Next, when the blowing mode door 25 rotates clockwise, the bi-level mode shown in FIG. 24 is set. In this bi-level mode, the air introduced from the air inlet 252c leaks to the defroster opening 21b side through the space between the outer peripheral wall 251 and the casing outer peripheral wall 210 as indicated by an arrow mf. That is, the foot opening 21d is not sealed.

  Next, when the blowing mode door 25 rotates clockwise, the foot mode shown in FIG. 25 is set. In this foot mode, air from the defroster opening 21b side leaks to the face opening 21c side as indicated by an arrow md, and air from the foot opening 21d side leaks to the face opening 21c side as indicated by an arrow me.

  Next, when the blowing mode door 25 rotates in the clockwise direction, the foot-diff mode is set as shown in FIG. In this foot-difference mode, air from the defroster opening 21b side leaks to the face opening 21c side as indicated by the arrow md, and substantially from the foot opening 21d side as indicated by the arrow me, as in the foot mode shown in FIG. Air leaks to the face opening 21c side.

  Next, when the blowing mode door 25 rotates clockwise, the defroster mode is set as shown in FIG. In this defroster mode, air leaks from the defroster opening 21b side to the face opening 21c side through the gap between the outer peripheral wall 251 and the casing projection 351 as indicated by the arrow mg, and air from the door opening 250c side Like mh, it leaks to the face opening 21c side through the gap between the outer peripheral wall 251 and the casing projection 352.

  According to this embodiment described above, the long plate-like seal members 260b and 260c are provided on the outer peripheral wall 251 side, and the long plate-like seal member 260a is provided on the outer peripheral wall 252 side.

  As described above, in the face mode in which the door opening 250c of the blowing mode door 25 communicates with the face opening 21c, the outer peripheral wall 251 closes the defroster opening 21b, and the outer peripheral wall 252 closes the foot opening 21d. For this reason, a gap is formed between the casing outer peripheral portion 210 and the outer peripheral wall 252 while the defroster opening 21b is sealed. That is, in the face mode, the degree of sealing the foot opening 21d is lower than the degree of sealing the defroster opening 21b.

  Therefore, in the face mode, the amount of air leaking through the defroster opening 21b is reduced by the sealing members 260a, 260b, and 260c from the amount of air leaking through the foot opening 21d.

  As described above, when the seal members 260a, 260b, and 260c are used, in the face mode, as compared with the case where the foot opening 21d and the defroster opening 21b are respectively sealed, the seal is similar to the above-described second embodiment. The amount of the member used can be further reduced.

  In the sixth embodiment described above, the example in which the seal members 260a, 260b, and 260c are used as the seal member has been described. However, the present invention is not limited to this, and the seal member 260a may not be used. In this case, in the face mode, air introduced from the air introduction port 252c leaks to the foot opening 21d side through the gap between the outer peripheral wall 252 and the casing outer peripheral wall 210.

  In the above-described sixth embodiment, a gap is formed between the casing outer peripheral portion 210 and the outer peripheral wall 252 while using the seal members 260a, 260b, and 260c to seal the defroster opening 21b in the face mode. Although the example has been described, instead of this, other seal members other than the seal members 260a, 260b, and 260c are arranged at the other end of the outer peripheral wall 252, and the casing outer peripheral portion 210 is formed using the other seal members. And the gap between the outer peripheral wall 252 and the outer peripheral wall 252 may be reduced.

(Seventh embodiment)
Next, the seventh embodiment will be described so as to configure a labyrinth seal structure in the blowing mode door 25 and the casing 21 of the sixth embodiment described above.

  The structure of the blowing mode door 25 of this embodiment is shown in FIG. 28, FIG. 29, and FIG.

  FIG. 28A is a perspective view showing the blowing mode door 25, and FIG. 28B is a cross-sectional view of the blowing mode door 25 viewed from the axial direction of the rotary shaft 25a. 29 is a cross-sectional view along A3-A3 in FIG. 29 (b), and FIG. 30 is a cross-sectional view along B3-B3 in FIG. 28 (b).

  The case side wall 225a and the semicircular side wall 250a of the present embodiment constitute a labyrinth seal structure similar to the labyrinth seal structure shown in FIGS. Further, the case side wall 225b and the semicircular side wall 250b of the present embodiment constitute a labyrinth seal structure similar to the labyrinth seal structure shown in FIGS. For this reason, the detailed description of the labyrinth seal structure of the present embodiment is omitted. As described above, the same effects as those of the configuration shown in FIGS.

(Eighth embodiment)
In the seventh embodiment described above, an example in which a member that swells due to wind pressure and seals the opening is used as the sealing member 260 is used. Instead, the outer peripheral wall 251 and the casing outer peripheral portion 210 are used as the sealing member 260. 8th Embodiment which seals an opening part using what compresses by elastic deformation between these is shown.

  The structure of the blowing mode door 25 of this embodiment is shown in FIGS. FIG. 31 is a perspective view showing the blowing mode door 25, and FIG. 32 is a cross-sectional view of a part of the blowing mode door 25 as viewed from the axial direction of the rotary shaft 25a. In FIG. 31, the same reference numerals as those in FIG.

  As the sealing member 260 of the present embodiment, foamed urethane, elastomer rubber or the like is used which is formed in a thin plate shape. The seal member 260 is formed to be compressible in the plate thickness direction by elastic deformation. The seal member 260 is fixed to the outer peripheral wall 251 with an adhesive or the like.

  In the present embodiment, since it is not necessary to apply a wind pressure to the seal member 260, the outer peripheral wall 251 is not provided with a plurality of openings 251a (see FIG. 2).

  On the other hand, as shown in FIG. 32, the outer peripheral portion 211 on the other side in the circumferential direction with respect to the defroster opening 21b in the casing outer peripheral portion 210 is provided with a protruding portion 211a that protrudes radially inward. . The protruding portion 211a is provided in the casing outer peripheral portion 210 in the axial direction. The tip of the protrusion 211a is formed in a linear shape extending in the axial direction.

  Furthermore, a protrusion 212a that protrudes radially inward is provided on the outer periphery 212 of the casing outer periphery 210 on one side in the circumferential direction with respect to the defroster opening 21b. The protrusion 212a is provided in the casing outer peripheral portion 210 in the axial direction. The tip of the protrusion 211a is formed in a linear shape extending in the axial direction.

  Next, the operation of this embodiment will be described. 33 to 37 show the operating state of the blowing mode door 25.

  First, in the face mode shown in FIG. 33, the door opening 250c communicates with the face opening 21c with the outer peripheral wall 251 closing the defroster opening 21b and the outer peripheral wall 252 closing the foot opening 21d. .

  At this time, the protruding portion 211a is pressed linearly against the seal member 260 and compressed by elastic deformation. Thereby, the projection 211a of the casing peripheral wall 210 and the outer peripheral wall 251 can be brought into close contact with each other.

  In addition to this, the protrusion 212a is linearly pressed against the seal member 260 and compressed by elastic deformation. Thereby, the projection 212a of the casing peripheral wall 210 and the outer peripheral wall 251 can be brought into close contact with each other.

  By the above, between the circumferential direction one side of the defroster opening part 21b and the outer peripheral wall 251 in the casing peripheral wall part 210, and the other circumferential direction side of the defroster opening part 21b and the outer peripheral wall of the casing peripheral wall part 210 251 can be brought into close contact with each other. Thereby, the defroster opening 21b can be sealed by the seal member 260.

  In this case, the foot opening 21d is in an unsealed state, and the air introduced from the air introduction port 252c passes through the gap between the casing outer peripheral portion 210 and the outer peripheral wall 252 as indicated by an arrow ma. It will be leaked.

  Next, when the blowing mode door 25 rotates clockwise, the bi-level mode shown in FIG. 34 is set. In this bi-level mode, similarly to the above-described face mode, the seal member 260 is compressed by the protrusions 211a and 212a to seal the defroster opening 21b.

  Next, when the blowing mode door 25 rotates clockwise, the foot mode shown in FIG. 35 is set. Further, when the blowing mode door 25 rotates in the clockwise direction, the foot-diff mode is set as shown in FIG. Next, when the blowing mode door 25 rotates clockwise, the defroster mode is set as shown in FIG.

  According to the present embodiment described above, the seal member 260 is provided only on the outer peripheral side in the radial direction of the outer peripheral wall 251, so that the seal member 260 is provided on the outer peripheral side in the radial direction of each of the outer peripheral walls 251 and 252. The amount of the seal member used can be reduced.

(Ninth embodiment)
In addition to the configuration of the eighth embodiment described above, the ninth embodiment in which the axial end of the seal member 260 is compressed to improve the sealing performance is shown.

  38 to 40 show configurations of the blowing mode door 25 and the casing 21 according to the present embodiment.

  FIG. 38 is a cross-sectional view of the blowing mode door 25 viewed from the axial direction. 39 is a cross-sectional view along A4-A4 in FIG. 38, and FIG. 40 is a cross-sectional view along B4-B4 in FIG.

  As shown in FIGS. 39 and 40, the casing 21 is provided with semicircular case side walls 225a and 225b centering on the rotation shaft 25a.

  An inclined surface 229 a is provided as a first pressing portion on one side in the axial direction of the inner peripheral wall surface of the casing peripheral wall portion 210. The inclined surface 229a is provided in an arc shape with the rotation shaft 25 as the center. The inclined surface 229a is provided so as to extend over the entire circumferential direction of the case side wall 225a. As shown in FIG. 40, the inclined surface 229a is formed so as to be inclined with respect to the outer peripheral wall 251 and approach the outer peripheral wall 251 toward the one side in the axial direction.

  An inclined surface 229 b is provided as a second pressing portion on the other axial side of the inner peripheral wall surface of the casing peripheral wall portion 210. The inclined surface 229b is provided in an arc shape with the rotation shaft 25 as the center. The inclined surface 229b is provided so as to extend over the entire circumferential direction of the case side wall 225b. As shown in FIG. 40, the inclined surface 229b is formed so as to be closer to the outer peripheral wall 251 as it is inclined with respect to the outer peripheral wall 251 and toward the other side in the axial direction.

  According to this embodiment described above, the inclined surface 229a compresses the seal member 260 by pressing one end portion in the axial direction in the circumferential direction. Thereby, the inclined surface 229a and the axial direction one side edge part of the outer peripheral wall 251 can be closely_contact | adhered. The inclined surface 229b compresses the seal member 260 by pressing the other axial end of the seal member 260 in the circumferential direction. Thereby, between the inclined surface 229b and the axial direction other side edge part of the outer peripheral wall 251 can be closely_contact | adhered.

Therefore, as shown in FIG. 38, when the outer peripheral wall 251 closes the defroster opening 21b, the gap between the one axial side of the casing peripheral wall 210 and the outer peripheral wall 251 with respect to the defroster opening 21b is sealed. be able to. Furthermore, it is possible to seal between the other side in the axial direction and the outer peripheral wall 251 with respect to the defroster opening 21b in the casing peripheral wall 210. As described above, the hermeticity of the defroster opening 21b can be improved.
(10th Embodiment)
In the tenth embodiment, as shown in FIG. 41, in addition to the configuration of the ninth embodiment described above, a seal member that compresses in the circumferential direction between the outer peripheral portion 212 and the outer peripheral wall 251 of the casing peripheral wall portion 210. 260b may be added.

  The seal member 260b of the present embodiment has an L-shaped cross section and is formed to extend in the axial direction. The seal member 260b of the present embodiment is integrally molded with the seal member 210.

  The seal member 260b is supported by the protruding portion 291. The protruding portion 291 is formed so as to protrude from the one circumferential side of the outer peripheral wall 251 to the outer peripheral side in the radial direction.

According to the present embodiment described above, the sealing property between the outer peripheral portion 212 and the outer peripheral wall 251 can be further improved, so that the sealing property of the defroster opening 21b can be further improved.
(Eleventh embodiment)
In the first to tenth embodiments described above, the example using the rotary door as the blowing mode door 25 has been described. Instead, in the eleventh embodiment, an example using a plate door as the blowing mode door is described. To do.

  FIG. 42 is a diagram showing a configuration of the air conditioning unit 20 of the present embodiment. In FIG. 42, the same reference numerals as those in FIG. In the figure, the up, down, left, and right arrows indicate the direction of the state in which the air conditioning unit 20 is mounted on the vehicle.

  An air inlet 21a is provided on the lower side of the casing 21 of the air conditioning unit 20 of the present embodiment. A face opening 21c is provided on the rear side of the casing 21 in the vehicle. A defroster opening 21 b is provided on the upper side of the casing 21. A foot opening 21 d is provided on the front side and the lower side of the casing 21.

  The casing 21 is provided with ventilation paths 32a and 32b. The ventilation path 32a constitutes a first ventilation path that allows the air introduced from the air introduction port 21a to flow toward the face opening 21c.

  A cooling heat exchanger 22, a heating heat exchanger 23, and an air mix door 24 are arranged in the ventilation path 32a. As a result, the conditioned air whose temperature is adjusted according to the opening degree of the air mix door 24 is introduced into the air mixing chamber 27 at the face opening 21c and the air inlet 33 of the ventilation path 32b, as in the first embodiment. Inflow from.

  The ventilation path 32b constitutes a second ventilation path that allows the air blown out from the ventilation path 32b to flow to the openings 21b and 21d by bypassing the face opening 21c.

  The ventilation path 32b is connected to a ventilation path 420 that guides air introduced from the air inlet 33 to the defroster opening 21b side, and a ventilation path 430 that guides air introduced from the air inlet 33 to the foot opening 21d side. ing.

  In the present embodiment, a face door 400 and a defroster door 410 are provided as blowout mode doors.

  The face door 400 is disposed on the air downstream side of the ventilation path 32a. The face door 400 includes a rotating shaft 400a that is rotatably supported with respect to the casing 21, and a face door main body 400b that is formed in a plate shape and rotates with the rotation of the rotating shaft 400a.

  The face door 400 opens at least one of the face opening 21c and the air inlet 33 of the ventilation path 32b. As the face door 400 of the present embodiment, a cantilever door in which the rotation shaft 400a is disposed on the end side of the face door main body 400b is used.

  The defroster door 410 is disposed at a branch position of the ventilation paths 420 and 430 in the ventilation path 32b. The defroster door 410 includes a rotating shaft 410a that is rotatably supported with respect to the casing 21, and a defroster door main body 410b that is formed in a plate shape and rotates as the rotating shaft 410a rotates.

  A seal member 410c is disposed on the defroster door main body 410b. The seal member 410c is provided corresponding to the defroster opening 21b. The seal member 410c closes the defroster opening 21b while the defroster door main body 410b closes the air inlet 420a of the ventilation path 420.

  As the defroster door 410 of the present embodiment, a cantilever door in which the rotation shaft 410a is disposed on the end side of the defroster door main body 410b is used. The face door 400 and the defroster door 410 are driven by a servo motor via a link mechanism (not shown).

  In this embodiment, the seal member corresponding to the face opening 21c is not provided, and the seal member corresponding to the foot opening 21d is not provided.

  Next, a specific operation of the present embodiment will be described.

  42 to 46 show the operating states of the doors 400 and 410, respectively.

  First, in the face mode shown in FIG. 42, the defroster door 410 seals the defroster opening 21b together with the seal member 410c with the face door 400 opening the face opening 21c and closing the air inlet 33 of the ventilation path 32b. To the state.

  In this case, the conditioned air from the air mixing chamber 27 flows into the face opening 21c. The conditioned air from the air mixing chamber 27 leaks from the gap between the inlet forming portion 500 that forms the air inlet 33 in the casing 21 and the face door 400 as indicated by the arrow na, and this leaked conditioned air flows into the foot opening 21d. Will flow to the side. That is, the foot opening 21d is not sealed.

  Next, as shown in FIG. 43, when the defroster door 410 seals the defroster opening 21b together with the seal member 410c, the face door 400 opens the face opening 21c and the air inlet 33 of the ventilation path 32b. Enter level mode.

  Next, as shown in FIG. 44, when the defroster door 410 slightly opens the air inlet 420a of the ventilation path 420 and the face door 400 closes the face opening 21c, the foot mode is set.

  In the foot mode, the conditioned air from the air mixing chamber 27 leaks from the gap between the periphery of the face opening 21c and the face door 400 in the casing 21 to the face opening 21c side as indicated by the arrow nb.

  Next, when the face door 400 closes the face opening 21c, as shown in FIG. 45, when the defroster door 410 opens the defroster opening 21b side and the foot opening 21d side, the foot differential mode is set.

  In this foot differential mode, as in the foot differential mode, the conditioned air from the air mixing chamber 27 leaks to the face opening 21c side as indicated by the arrow nb.

  Next, when the face door 400 closes the face opening 21c and the defroster door 410 opens the defroster opening 21b and closes the foot opening 21d as shown in FIG. 46, the defroster mode is set.

  In the defroster mode, the conditioned air from the air mixing chamber 27 leaks from the gap between the air inlet 430a of the ventilation path 430 and the defroster door 410 in the casing 21 to the foot opening 21d side as indicated by the arrow nc.

  According to the present embodiment described above, only the seal member 410c that seals the defroster opening 21b with the defroster door 410 closing the defroster opening 21b is provided. Therefore, the amount of use of the seal member can be reduced as compared with the case where the seal member is used corresponding to each of the three openings 21b, 21c, and 21d.

  In the above-described eleventh embodiment, an example in which a cantilever door is used as the face door 400 has been described. Instead, a butterfly in which a rotation shaft 400a is disposed at the center of the face door main body 400b as the face door 400 is shown. A door may be used. Similarly, a butterfly door may be used as the defroster door 410. The face door 400 is not limited to a plate door, and a rotary door or a slide door may be used.

(Twelfth embodiment)
In the eleventh embodiment described above, the example in which the foot opening is provided on the front side and the lower side of the casing has been described. Instead, the foot opening is provided on the vehicle rear side of the casing. This 12th Embodiment which is shown is shown.

  The configuration of this embodiment is shown in FIG. 47, the same reference numerals as those in FIG. 42 denote the same components, and a description thereof will be omitted. In the figure, the up, down, left, and right arrows indicate the direction of the state in which the air conditioning unit 20 is mounted on the vehicle.

  The foot opening 21d of the present embodiment is disposed on the vehicle rear side of the casing 21. The face opening 21c is disposed on the rear side of the foot opening 21d and opens upward. The defroster opening 21b is disposed on the rear side of the face opening 21c and opens upward.

  The ventilation path 32a of this embodiment comprises the 1st ventilation path which flows the air introduce | transduced from the air inlet 21a toward the foot opening part 21d side.

  The ventilation path 32b flows the air blown out from the ventilation path 32a to the face opening 21c side, bypassing the foot opening 21d. The ventilation path 420 is connected to the ventilation path 32b. The ventilation path 420 guides the air introduced from the air inlet 33 to the defroster opening 21b side, bypassing the face opening 21c.

  That is, the ventilation path 32b constitutes a second ventilation path that allows the air blown from the ventilation path 32a to flow to the openings 21c and 21b by bypassing the foot opening 21d.

  In the present embodiment, the foot door 440 is disposed on the air downstream side of the ventilation path 32a. The foot door 440 includes a rotating shaft 440a that is rotatably supported with respect to the casing 21, and a foot door body 440b that is formed in a plate shape and rotates with the rotation of the rotating shaft 440a.

  The foot door 440 opens at least one of the foot opening 21d and the air inlet 33 of the ventilation path 32b. As the foot door 440 of the present embodiment, a cantilever door in which the rotation shaft 440a is disposed on the end side of the foot door main body 440b is used.

  The defroster door 410 is disposed at a branch position between the face opening 21c and the ventilation path 420 in the ventilation path 32b. The defroster door 410 includes a rotating shaft 410a that is rotatably supported with respect to the casing 21, and a defroster door main body 410b that is formed in a plate shape and rotates as the rotating shaft 410a rotates.

  A seal member 410c is disposed on the defroster door main body 410b. The seal member 410c is provided corresponding to the defroster opening 21b. The seal member 410c closes the defroster opening 21b while the defroster door main body 410b closes the air inlet 420a of the ventilation path 420.

  The foot door 440 and the defroster door 410 are driven by a servo motor via a link mechanism (not shown).

  In this embodiment, the seal member corresponding to the face opening 21c is not provided, and the seal member corresponding to the foot opening 21d is not provided.

  In the present embodiment configured as described above, in the face mode shown in FIG. 47, the defroster door 410 opens with the face open while the foot door 440 closes the foot opening 21d and opens the air inlet 33 of the ventilation path 32b. The part 21c is opened, and the defroster opening 21b is sealed together with the seal member 410c.

  In this case, the conditioned air from the air mixing chamber 27 flows into the air inlet 33 of the ventilation path 32b, and this air is blown out from the face opening 21c. The conditioned air from the air mixing chamber 27 leaks as indicated by an arrow mx from the gap between the inlet forming portion 600 that forms the foot opening 21d and the foot door 440 in the casing 21, and this leaked conditioned air flows into the foot opening 21d. Will flow to the side. That is, the foot opening 21d is not sealed.

  According to the present embodiment described above, the foot door 440 closes the foot opening 21d, and the defroster door 410 opens the face opening 21c and closes the defroster opening 21b, so that only the defroster opening 21b is sealed. Only the seal member 410c is provided. Therefore, the amount of use of the seal member can be reduced as compared with the case where the seal member is used corresponding to each of the three openings 21b, 21c, and 21d.

(13th Embodiment)
In the above-described twelfth embodiment, the example in which the defroster opening is opened on the upper side is shown, but instead, the thirteenth embodiment in which the defroster opening is opened on the rear side is shown.

  The configuration of the present embodiment is shown in FIG. 48, the same reference numerals as those in FIG. 47 denote the same components, and a description thereof will be omitted. The arrows on the top, bottom, left and right in the figure indicate the direction of the state in which the air conditioning unit is mounted on the vehicle.

  The defroster opening 21 b of the present embodiment is disposed on the vehicle rear side of the casing 21. The face opening 21c is disposed on the front side of the defroster opening 21b and opens upward. The foot opening 21d opens downward on the front side of the defroster opening 21b.

  The ventilation path 32a of this embodiment comprises the 1st ventilation path which flows the air introduce | transduced from the air inlet 21a toward the defroster opening part 21b side.

  The ventilation path 32b constitutes a second ventilation path that allows the air blown from the ventilation path 32a to flow to the openings 21c and 21d by bypassing the defroster opening 21b. The ventilation paths 420 and 430 are connected to the ventilation path 32b. The ventilation path 420 guides the air introduced from the air inlet 33 to the face opening 21c side. The ventilation path 430 guides the air introduced from the air inlet 33 to the foot opening 21d side.

  In the present embodiment, the defroster door 410 is disposed on the air downstream side of the ventilation path 32a. The defroster door 410 includes a rotating shaft 410a that is rotatably supported with respect to the casing 21, and a defroster door main body 410b that is formed in a plate shape and rotates as the rotating shaft 410a rotates.

  A seal member 410c is disposed on the defroster door main body 410b. The seal member 410c is provided corresponding to the defroster opening 21b. The seal member 410c closes the defroster opening 21b while the defroster door main body 410b closes the air inlet 420a of the ventilation path 420.

  The face door 400 is disposed at a branch position between the ventilation path 430 and the ventilation path 420 in the ventilation path 32b. The face door 400 includes a rotating shaft 400a that is rotatably supported with respect to the casing 21, and a face door main body 400b that is formed in a plate shape and rotates with the rotation of the rotating shaft 400a.

  The face door 400 and the defroster door 410 are driven by a servo motor via a link mechanism (not shown).

  In this embodiment, the seal member corresponding to the face opening 21c is not provided, and the seal member corresponding to the foot opening 21d is not provided.

  In the present embodiment configured as described above, in the face mode shown in FIG. 48, the face door 400 is in the face state with the defroster door 410 closing the defroster opening 21b and opening the air inlet 33 of the ventilation path 32b. The opening 21c is opened and the inlet 430a of the ventilation path 430 is closed.

  In this case, the defroster door 410 seals the defroster opening 21b together with the seal member 410c.

  And the conditioned air from the air mixing chamber 27 flows into the air inlet 33 of the ventilation path 32b, and this air is blown out from the face opening 21c. Air from the ventilation path 32b leaks as indicated by an arrow nc from the gap between the inlet forming portion 601 that forms the inlet 430a of the ventilation path 430 in the casing 21 and the foot door 440, and the leaked conditioned air flows toward the foot opening 21d Will flow into. That is, the foot opening 21d is not sealed.

  According to the present embodiment described above, the face door 400 opens the inlet 420a of the ventilation path 420 and closes the inlet of the ventilation path 430, and the defroster door 410 closes the defroster opening 21b. A seal member 410c that seals only the portion 21b is provided. Therefore, the amount of use of the seal member can be reduced as compared with the case where the seal member is used corresponding to each of the three openings 21b, 21c, and 21d.

  In the above-described thirteenth embodiment, a cantilever door is used as the face door 400, but a butterfly door may be used as the face door 400 instead. Similarly, a butterfly door may be used as the defroster door 410. The face door 400 is not limited to a plate door, and a rotary door or a slide door may be used.

(14th Embodiment)
In the thirteenth embodiment described above, an example using two doors such as a defroster door and a face door has been described. Instead, in the fourteenth embodiment, a face opening, a foot opening, and a defroster opening are provided. A door is provided for each.

  FIG. 49 is a diagram showing a configuration of the air conditioning unit 20 of the present embodiment. 49, the same reference numerals as those in FIG. 42 denote the same elements, and a description thereof will be omitted. In the figure, the up, down, left, and right arrows indicate the direction of the air conditioning unit 20A mounted on the vehicle.

  In the air conditioning unit 20A of the present embodiment, a foot door 440 is provided in addition to the face door 400 and the defroster door 410.

  The defroster door 410 is disposed on the air upstream side of the ventilation path 420. The defroster door 410 opens and closes the air inlet 420a of the ventilation path 420 with the rotation of the rotating shaft 410a. The defroster door 410 seals the defroster opening 21d together with the seal member 410c as in the seventh embodiment.

  The foot door 440 includes a rotating shaft 440a that is rotatably supported with respect to the casing 21, and a foot door body 440b that is formed in a plate shape and rotates with the rotation of the rotating shaft 440a.

  In the present embodiment configured as described above, the face door 400 opens the face opening 21c and the foot door 440 opens the air inlet of the ventilation path 430 in a state where the defroster door 410 seals the defroster opening 21b together with the seal member 410c. When 430a is closed, the face mode is set.

  In this case, the conditioned air from the air mixing chamber 27 flows into the face opening 21c. In addition, the conditioned air from the air mixing chamber 27 flows toward the ventilation path 32b as indicated by the arrow na. This flowing air flows to the foot opening 21d side through the space between the opening forming portion 510 forming the air inlet 430a and the foot door 440 in the casing 21. That is, the foot opening 21d is not sealed.

(Other embodiments)
In the eleventh embodiment described above, when the face door 400 closes the face opening 21c in the casing 21 by disposing a cushion member for preventing sound hitting at the end of the face door main body 400b, the face door main body 400b However, even if the casing 21 is strongly struck against the opening forming part that forms the face opening 21c, it may be possible to prevent the generation of a hitting sound.

  The cushion member for preventing sound hitting may be arranged not on the face door 400 side but on the opening forming portion side of the casing 21. The cushion member for preventing sound hitting is made of urethane resin, elastomer rubber or the like.

  Further, the cushion member for preventing sound hitting may be disposed on the defroster door 410 other than the face door 400. In this case, the defroster door main body 410b is disposed on the air inlet 420a side of the ventilation path 420.

  Further, a cushion member for preventing sound hitting may be disposed on the doors 400, 410, and 440 of the twelfth and thirteenth embodiments described above.

  In the fourteenth embodiment described above, a cushion member for preventing hitting may be disposed on the foot door 440.

  In the above-described eleventh and twelfth embodiments, the example in which the seal member 410c is disposed on the defroster door 410 side has been described, but instead, the seal member 410c may be disposed on the casing 21 side.

It is a figure showing the schematic structure of the air-conditioner for vehicles of a 1st embodiment of the present invention. It is a figure which shows the blowing mode door single-piece | unit of FIG. It is a figure which shows the outline of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the modification of 1st Embodiment of this invention. It is A2-A2 sectional drawing in FIG. It is B2-B2 sectional drawing in FIG. It is sectional drawing which shows the blowing mode door single-piece | unit of 2nd Embodiment of this invention. It is the figure which looked at the blowing mode door of FIG. 8 from the upper side. It is a figure which shows the blowing mode door single-piece | unit of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is a figure which shows the operating state of the blowing mode door of FIG. It is sectional drawing which shows the sealing member single-piece | unit of 3rd Embodiment of this invention. It is sectional drawing which shows the operating state of the seal part of 3rd Embodiment. It is a figure which shows the operating state of a sealing member. It is sectional drawing which shows the operating state of the seal part of 4th Embodiment of this invention. It is sectional drawing which shows the operating state of the seal part of 5th Embodiment of this invention. It is a figure which shows the blowing mode door single-piece | unit of 6th Embodiment of this invention. It is sectional drawing which shows the operating state of the blowing mode door of 6th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 6th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 6th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 6th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 6th Embodiment. It is a figure which shows schematic structure of the vehicle air conditioner of 7th Embodiment of this invention. It is a figure which shows the operating state of the door of 7th Embodiment. It is a figure which shows the operating state of the door of 7th Embodiment. It is a figure which shows the blowing mode door of 8th Embodiment of this invention. It is a fragmentary sectional view of the blowing mode door of FIG. It is sectional drawing which shows the operating state of the blowing mode door of 8th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 8th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 8th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 8th Embodiment. It is sectional drawing which shows the operating state of the blowing mode door of 8th Embodiment. It is a figure which shows the blowing mode door of 9th Embodiment of this invention. It is A4-A4 sectional drawing in FIG. It is B4-B4 sectional drawing in FIG. It is a figure which shows the blowing mode door of 10th Embodiment of this invention. It is a figure which shows schematic structure of the vehicle air conditioner of 11th Embodiment of this invention. It is a figure which shows schematic structure of the vehicle air conditioner of 11th Embodiment. It is a figure which shows schematic structure of the vehicle air conditioner of 11th Embodiment. It is a figure which shows schematic structure of the vehicle air conditioner of 11th Embodiment. It is a figure which shows schematic structure of the vehicle air conditioner of 11th Embodiment. It is a figure which shows schematic structure of the vehicle air conditioner of 12th Embodiment of this invention. It is a figure which shows schematic structure of the vehicle air conditioner of 13th Embodiment of this invention. It is a figure which shows schematic structure of the vehicle air conditioner of 14th Embodiment of this invention.

Explanation of symbols

20 air conditioning unit 21 casing,
21a Air inlet 21b Defroster opening 21c Face opening 21d Foot opening 25 Blow mode door 210 Casing peripheral wall 250c Door opening 251 Outer wall 252 Outer wall 260 Sealing member

Claims (22)

A rotating shaft (25a) supported rotatably, a first outer peripheral wall (251) extending in a circumferential direction around the rotating shaft, and a circumferential direction with respect to the first outer peripheral wall A second outer peripheral wall (252) that is provided and extends in the circumferential direction around the rotation axis; and a door opening (250c) provided between the first and second outer peripheral walls. And a rotary door (25) in which the first and second outer peripheral walls and the door opening rotate simultaneously with the rotation of the rotary shaft;
A casing (21) that houses the rotary door and that has a defroster opening (21b), a face opening (21c), and a foot opening (21d) arranged on the radially outer peripheral side with respect to the rotary door. And comprising
One of the defroster opening (21b) and the foot opening (21d) is disposed on one side in the circumferential direction with respect to the face opening (21c), and the other opening is disposed on the face. It is arranged on the other side in the circumferential direction with respect to the opening (21c),
Along with the rotation of the rotary door, at least one of the defroster opening, the face opening, and the foot opening is moved by one of the outer peripheral walls of the first and second outer peripheral walls. In the closed state, the door opening portion communicates with the other opening portion other than the at least one opening portion among the defroster opening portion, the face opening portion, and the foot opening portion, and the other opening communicated with the opening. A vehicle air conditioner that air-conditions the vehicle interior with air-conditioned air blown from the section into the vehicle interior,
A sealing member (260) is provided only on one outer peripheral wall (251) side of the first and second outer peripheral walls,
In the rotary door, the door opening communicates with the face opening, and one of the first and second outer peripheral walls (251) closes the defroster opening, and further In the state where the other outer peripheral wall (252) other than the outer peripheral wall closes the foot opening, the seal member (260) seals the defroster opening, and the foot opening is unsealed. A vehicle air conditioner characterized in that A rotating shaft (25a) supported rotatably, a first outer peripheral wall (251) extending in a circumferential direction around the rotating shaft, and a circumferential direction with respect to the first outer peripheral wall A second outer peripheral wall (252) that is provided and extends in the circumferential direction around the rotation axis; and a door opening (250c) provided between the first and second outer peripheral walls. And a rotary door (25) in which the first and second outer peripheral walls and the door opening rotate simultaneously with the rotation of the rotary shaft;
A casing (21) that houses the rotary door and that has a defroster opening (21b), a face opening (21c), and a foot opening (21d) arranged on the radially outer peripheral side with respect to the rotary door. And comprising
One of the defroster opening (21b) and the foot opening (21d) is disposed on one side in the circumferential direction with respect to the face opening (21c), and the other opening is disposed on the face. It is arranged on the other side in the circumferential direction with respect to the opening (21c),
Along with the rotation of the rotary door, at least one of the defroster opening, the face opening, and the foot opening is moved by one of the outer peripheral walls of the first and second outer peripheral walls. In the closed state, the door opening portion communicates with the other opening portion other than the at least one opening portion among the defroster opening portion, the face opening portion, and the foot opening portion, and the other opening communicated with the opening. A vehicle air conditioner that air-conditions the vehicle interior with air-conditioned air blown from the section into the vehicle interior,
In the rotary door, the door opening communicates with the face opening, and one of the first and second outer walls (251) closes the defroster opening. The sealing members (260a, 260b) that reduce the amount of air leaking through the defroster opening from the amount of air leaking through the foot opening in a state where the other outer peripheral wall (252) other than the outer peripheral wall closes the foot opening. 260c), a vehicle air conditioner. The rotary door has a first door side wall (250a) provided on one side in the axial direction of the rotating shaft with respect to the first and second outer peripheral walls,
The casing has a first case side wall (225a) that is provided on one side in the axial direction with respect to the first door side wall and faces the first door side wall via a gap,
One of the first door side wall and the first case side wall is provided with at least one groove (Ka), and the other side wall is provided with a protrusion (228a) protruding into the groove. And
The vehicle air conditioner according to claim 1 or 2, wherein the groove and the projection constitute a labyrinth structure that restricts the flow of the conditioned air flowing through the gap. The rotary door has a second door side wall (250b) provided on the opposite side of the first door side wall with respect to the first and second outer peripheral walls,
The casing is provided on the opposite side of the first door side wall with respect to the second door side wall, and is opposed to the second door side wall via a gap, a second case side wall (225b) Have
One of the second door side wall and the second case side wall is provided with at least one groove (Kb), and the other side wall is provided with a protrusion (228b) protruding into the groove. And
The vehicle air conditioner according to claim 3, wherein the groove and the protrusion constitute a labyrinth structure that restricts the flow of the conditioned air flowing through the gap.   The vehicle air conditioner according to any one of claims 1 to 4, wherein the seal member is formed so as to cover the one outer peripheral wall from a radially outer peripheral side. The one outer peripheral wall is provided with an opening (251a),
The seal member (260) is disposed so as to cover the opening of the one outer peripheral wall,
In a state where the door opening communicates with the face opening and the one outer peripheral wall (251) closes the defroster opening, the seal member receives the air pressure of the conditioned air through the opening. 6. The vehicle air conditioner according to claim 5, wherein the defroster opening is inflated outwardly in a direction to seal the opening. The seal member is supported by the one outer peripheral wall and is formed to be elastically deformable.
The casing includes a casing peripheral wall portion (210) provided on the radially outer peripheral side with respect to the rotary door and having the defroster opening, the face opening, and the foot opening.
The casing peripheral wall portion is
It is arrange | positioned in the said circumferential direction one side with respect to the said defroster opening part, protrudes in the said radial direction over the axial direction of the said rotating shaft, and the front-end | tip part is linear over the axial direction of the said rotating shaft. A formed first protrusion (211a);
It is arranged on the other side in the circumferential direction with respect to the opening of the defroster, protrudes inward in the radial direction over the axial direction of the rotating shaft, and its tip end is linear in the axial direction of the rotating shaft. A second protrusion (212a) formed,
In a state where the door opening communicates with the face opening and the one outer peripheral wall (251) closes the defroster opening, the first and second protrusions push the seal member to form the seal. The member is compressed by elastic deformation over the axial direction,
The defroster opening is hermetically sealed by bringing the compressed seal member into close contact between the first and second protrusions and the one outer peripheral wall. The vehicle air conditioner according to claim 5. The inner peripheral wall of the casing peripheral wall portion is provided with a first pressing portion (229a) that presses one end in the axial direction of the rotary shaft in the circumferential direction of the seal member,
The first pressing portion compresses the one axial end portion of the sealing member by elastic deformation by pressing the axial one end portion of the sealing member in a circumferential direction. The vehicle air conditioner according to claim 7, wherein a space between the one outer peripheral wall (251) is sealed in a circumferential direction.   A cross-sectional shape of the first pressing portion (229a) is formed so as to be inclined toward the one outer peripheral wall and approach the one outer peripheral wall toward the one side in the axial direction. The vehicle air conditioner according to claim 8. The inner peripheral wall of the casing peripheral wall portion is provided with a second pressing portion (229b) that presses the other end portion in the axial direction of the rotation shaft in the circumferential direction of the seal member,
The second pressing portion presses the other end portion in the axial direction of the seal member over the circumferential direction, thereby compressing the other end portion in the axial direction of the seal member by elastic deformation. The vehicle air conditioner according to claim 8 or 9, wherein a space between the outer peripheral wall (251) is sealed in a circumferential direction.   A cross-sectional shape of the second pressing portion (229b) is formed so as to be inclined toward the one outer peripheral wall and approach the one outer peripheral wall toward the other side in the axial direction. The vehicle air conditioner according to claim 10. The seal member has a first seal member (260a) disposed on the radially outer side with respect to the one outer peripheral wall and on the one circumferential side, and a diameter with respect to the one outer peripheral wall. A second seal member (260c) disposed on the outer circumferential side and on the other circumferential side,
The first and second seal members are formed so as to extend in the axial direction of the rotating shaft,
In a state where the one outer peripheral wall closes the defroster opening, the first seal member makes a close contact between the one circumferential side of the casing with respect to the defroster opening and the one outer peripheral wall. In addition, the second seal member seals the defroster opening by bringing the other circumferential side and the one outer peripheral wall into close contact with the defroster opening in the casing. The vehicle air conditioner according to any one of claims 1 to 11, characterized in that: The casing includes a casing peripheral wall portion (210) provided on the radially outer peripheral side with respect to the rotary door and having the defroster opening, the face opening, and the foot opening.
In a state where the one outer peripheral wall closes the face opening and the door opening communicates with the foot opening, the conditioned air flows from the gap between the casing peripheral wall and the one outer peripheral wall. The vehicle air conditioner according to claim 12, wherein the vehicle air conditioner leaks to the face opening side. The first and second seal members are in close contact with the one outer peripheral wall and the casing peripheral wall portion in a state compressed by elastic deformation between the one outer peripheral wall and the casing peripheral wall portion, respectively. It is what
In at least one of the first and second seal members, the length (r1) between the radially outer peripheral side and the rotating shaft advances to either one of the circumferential directions. It is formed so that it may become so short, and it guides that said one seal member moves to the inner peripheral wall side of said casing peripheral wall part with rotation of said one outer peripheral wall. Item 14. The vehicle air conditioner according to Item 12 or 13.   Of the one outer peripheral wall, the surface (251c) on which the one sealing member is disposed is shorter as the length (r2) between the rotation shaft and the rotating shaft proceeds to either one of the circumferential directions. By being formed, the length (r1) between the radially outer peripheral side of the one sealing member and the rotating shaft is shortened as it proceeds to any one side in the circumferential direction. The vehicle air conditioner according to claim 14, wherein the vehicle air conditioner is configured as follows.   The opening forming portion (211d) that forms any one of the defroster opening, the face opening, and the foot opening in the casing peripheral wall portion rotates as the opening gets closer to the one opening. By forming the length (r3) between the shaft and the shaft to be longer, one of the first and second seal members becomes one of the first and second seal members as the rotary door rotates. The vehicle air conditioner according to any one of claims 12 to 15, which guides movement from the opening side to the inner peripheral wall (210c) side of the casing peripheral wall portion. The casing includes a casing peripheral wall (251) provided on the radially outer peripheral side with respect to the rotary door, and having the defroster opening, the face opening, and the foot opening.
The casing peripheral wall portion is provided on one side in the circumferential direction with respect to the defroster opening portion, and protrudes toward the radially inner peripheral side, and the casing peripheral wall portion with respect to the defroster opening portion. A second casing protrusion (350) provided on the other circumferential side and projecting radially inward,
The first seal member ( 260b ) is disposed on one side in the circumferential direction with respect to the one outer peripheral wall;
The second seal member (260c) is disposed on the other circumferential side with respect to the one outer peripheral wall;
With the one outer peripheral wall (251) closing the defroster opening, the first seal member ( 260b ) closely contacts the one outer peripheral wall and the first casing protrusion, and 2. The vehicle-use vehicle according to claim 1, wherein the two sealing members (260 c) seal the defroster opening by bringing the one outer peripheral wall into close contact with the second casing protrusion. Air conditioner.   With the door opening communicating with the foot opening and the one outer peripheral wall closing the face opening, the conditioned air passes through the gap between the one outer peripheral wall and the casing outer peripheral wall. 18. The vehicle air conditioner according to claim 17, wherein the vehicle air conditioner leaks to the face opening side. A face opening (21c), a foot opening (21d), a defroster opening (21b), a first ventilation path (32a) for flowing conditioned air toward the face opening, and the first ventilation A casing (21) having a second ventilation path (32b) for flowing the conditioned air blown out from the path toward the foot opening and the defroster opening, bypassing the face opening;
A face door (400) which is formed in a plate shape and opens one of the face opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (400a); ,
A defroster door (410) which is formed in a plate shape and opens one of the foot opening and the defroster opening as the rotation shaft (410a) rotates.
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of the defroster opening, the face opening, and the foot opening,
In a state where the defroster door closes the defroster opening and opens the foot opening, and the face door opens the face opening and closes the air inlet (33) of the second ventilation path. A vehicle air conditioner comprising a sealing member (410c) provided to seal the defroster opening and to seal the foot opening. A face opening (21c), a foot opening (21d), a defroster opening (21b), a first ventilation path (32a) for flowing conditioned air toward the foot opening, and the first ventilation A casing (21) having a second ventilation path (32b) for flowing the conditioned air blown out of the path toward the face opening and the defroster opening, bypassing the foot opening;
A foot door (440) that is formed in a plate shape and that opens one of the foot opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (440a);
A defroster door (410) that is formed in a plate shape and that opens one of the face opening and the defroster opening as the rotation shaft (410a) rotates;
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of the defroster opening, the face opening, and the foot opening,
In the state where the defroster door closes the defroster opening and opens the face opening side, and the foot door closes the foot opening and opens the air inlet of the second ventilation path, the defroster opening The vehicle air conditioner is provided with a seal member (410c) provided so as to be in a sealed state and the foot opening is not sealed. A face opening (21c), a foot opening (21d), a defroster opening (21b), a first ventilation path (32a) for flowing conditioned air toward the defroster opening, and the first ventilation A casing (21) having a second ventilation path (32b) for flowing the conditioned air blown out of the path toward the face opening and the foot opening by bypassing the defroster opening;
A defroster door (410) which is formed in a plate shape and opens one of the defroster opening and the air inlet (33) of the second ventilation path in accordance with the rotation of the rotation shaft (410a); ,
A face door (400) that is formed in a plate shape and that opens one of the face opening and the foot opening in accordance with the rotation of the rotation shaft (400a);
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of the defroster opening, the face opening, and the foot opening,
The defroster door closes the defroster opening to open the air inlet of the second ventilation path, and the face door opens the face opening and closes the foot opening. The vehicle air conditioner is provided with a seal member (410c) provided so as to be in a sealed state and the foot opening is not sealed. A casing (21) having a face opening (21c), a foot opening (21d), and a defroster opening (21b) for flowing conditioned air toward the face opening, the foot opening, and the defroster opening )When,
A face door (400) which is formed in a plate shape and opens and closes the face opening as the rotation shaft (400a) rotates;
A foot door (440) which is formed in a plate shape and opens and closes the foot opening in accordance with the rotation of the rotation shaft (440a);
A defroster door (410) that is formed in a plate shape and opens and closes the defroster opening in accordance with the rotation of the rotation shaft (410a);
A seal member (410c) that seals the defroster opening in a state where the defroster door closes the defroster opening;
A vehicle air conditioner that air-conditions a vehicle interior with conditioned air blown from any one of the defroster opening, the face opening, and the foot opening,
The face door opens the face opening, the defroster door closes the defroster opening, and the foot door closes the foot opening, and the defroster opening is sealed, and A vehicle air conditioner comprising a seal member (410c) provided so as to put the foot opening in an unsealed state.

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